Comms Analog Input - ABB SM1000 User Manual

Videographic Recorders
SM1000 and SM2000

4.2.3 Comms Analog Input

Note. This tab is displayed only if 'Implementation' is set to 'Modbus TCP Client' – see Section 4.2.1, page 13.
IM/SMENET Issue 4
Select the comms analog input to hold the data from the
nominated slave device.
Select the communications protocol to be used by the
instrument to communicate with the nominated slave device:
None – comms analog channel unused
TCP – Modbus Transmission Control Protocol
RTU – access a Remote Terminal Unit (RTU) via Modbus
TCP gateway
Note. Displayed only if 'Protocol' is set to 'RTU'.
Enter the RTU address assigned to the remote unit (1 to 247).
Notes.
Displayed only if 'Protocol' is set to 'RTU'.
This setting is always required to access a RTU via
Ethernet.
Set the IP address for the Modbus TCP gateway required to
communicate with the RTU.
Note. Displayed only if 'Protocol' is set to 'TCP'.
Enter the IP address assigned to the slave device.
Note. Displayed only if 'Protocol' is set to 'TCP' or 'RTU'.
Enter the register number to be read in the slave device.
Note. Displayed only if 'Protocol' is set to 'TCP' or 'RTU'.
Select the register type, 'Holding Register' or 'Input Register'.
Note. Displayed only if 'Protocol' is set to 'TCP' or 'RTU'.
Select the format of the data to be read from the slave device:
Sint16 – signed, 16 bit integer
Sint32 – signed, 32 bit integer, transmitted in high/low
order
rev. Sint32 – signed, 32 bit integer, transmitted in low/high
order
IEEE – 32 bit floating point number, transmitted in
high/low order
Rev. IEEE – 32 bit floating point number, transmitted in
low/high order
4 Modbus TCP
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